A069812 - OEIS

A069812 as a simple table

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	1
7	1
8	3
9	4
10	4
11	4
12	5
13	5
14	5
15	5
16	8
17	8
18	9
19	9
20	10
21	10
22	10
23	10
24	12
25	13
26	13
27	15
28	16
29	16
30	16
31	16
32	20
33	20
34	20
35	20
36	22
37	22
38	22
39	22
40	24
41	24
42	24
43	24
44	25
45	26
46	26
47	26
48	29
49	30
50	31
51	31
52	32
53	32
54	34
55	34
56	36
57	36
58	36
59	36
60	37
61	37
62	37
63	38
64	43
65	43
66	43
67	43
68	44
69	44
70	44
71	44
72	47
73	47
74	47
75	48

[0,0,0,1,1,1,1,3,4,4,4,5,5,5,5,8,8,9,9,10,10,10, 10,12,13,13,15,16,16,16,16,20,20,20,20,22,22,22, 22,24,24,24,24,25,26,26,26,29,30,31,31,32,32,34, 34,36,36,36,36,37,37,37,38,43,43,43,43,44,44,44, 44,47,47,47,48]

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	1
7	1
8	3
9	4
10	4
11	4
12	5
13	5
14	5
15	5
16	8
17	8
18	9
19	9
20	10
21	10
22	10
23	10
24	12
25	13
26	13
27	15
28	16
29	16
30	16
31	16
32	20
33	20
34	20
35	20
36	22
37	22
38	22
39	22
40	24
41	24
42	24
43	24
44	25
45	26
46	26
47	26
48	29
49	30
50	31
51	31
52	32
53	32
54	34
55	34
56	36
57	36
58	36
59	36
60	37
61	37
62	37
63	38
64	43
65	43
66	43
67	43
68	44
69	44
70	44
71	44
72	47
73	47
74	47
75	48

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	1
7	1
8	3
9	4
10	4
11	4
12	5
13	5
14	5
15	5
16	8
17	8
18	9
19	9
20	10
21	10
22	10
23	10
24	12
25	13
26	13
27	15
28	16
29	16
30	16
31	16
32	20
33	20
34	20
35	20
36	22
37	22
38	22
39	22
40	24
41	24
42	24
43	24
44	25
45	26
46	26
47	26
48	29
49	30
50	31
51	31
52	32
53	32
54	34
55	34
56	36
57	36
58	36
59	36
60	37
61	37
62	37
63	38
64	43
65	43
66	43
67	43
68	44
69	44
70	44
71	44
72	47
73	47
74	47
75	48

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	1
7	1
8	3
9	4
10	4
11	4
12	5
13	5
14	5
15	5
16	8
17	8
18	9
19	9
20	10
21	10
22	10
23	10
24	12
25	13
26	13
27	15
28	16
29	16
30	16
31	16
32	20
33	20
34	20
35	20
36	22
37	22
38	22
39	22
40	24
41	24
42	24
43	24
44	25
45	26
46	26
47	26
48	29
49	30
50	31
51	31
52	32
53	32
54	34
55	34
56	36
57	36
58	36
59	36
60	37
61	37
62	37
63	38
64	43
65	43
66	43
67	43
68	44
69	44
70	44
71	44
72	47
73	47
74	47
75	48